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True [87]
3 years ago
6

I need help with this question

Mathematics
1 answer:
Nostrana [21]3 years ago
7 0
All of the right triangles are similar.
.. (long side)/(short side) = 20/x = x/5
.. x^2 = 100 . . . . . . . . "cross multiply"
.. x = √100
.. x = 10

_____
The geometric mean of "a" and "b" is √(ab). x is the geometric mean of 20 and 5, the segments of the hypotenuse of the larger right triangle.
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Please help with best explained answer
KIM [24]

Answer:

x =  25        B = 65˙       C = 50˙

Step-by-step explanation:

Triangle Sum- All three angles in a triangle add up to 180˙

65 + (3x - 10) + (2x) = 180

65 - 10 +3x + 2x = 180                              Combine like terms

            55 + 5x = 180                               Move the 55 over to combine w/180.  

          <u>- 55            -55   </u>

                     <u>5x</u> = <u>125</u>                               Divide by 5

                      5       5                                

                       x =  25                               Answer

    B                                                   C

(3x - 10)                                           (2x)

(3*25 - 10)                                     (2* 25)

      65˙                                            50˙

8 0
3 years ago
Jeremy checked the mail at 11:00 a.m. for one week, and it was never there. He then checked the mail at noon for one week, and i
Simora [160]
C,

because he checks at 12:00 on the dot or that's what they're implying, so it can't be D

and the mail is always there at noon, so b is out of the question,

and a, well common sense it

5 0
3 years ago
Read 2 more answers
Which angles are coterminal angles for an angle of 125°?
taurus [48]

Answer:

125° = 25/36 π ≈ 0.694 π

Positive coterminal angles: 485°, 845°, 1205°, 1565°

Negative coterminal angles: -235°, -595°, -955°, -1315°

8 0
3 years ago
Who wants to be friend 14 and under
Leni [432]

Answer:

me

Step-by-step explanation:

7 0
3 years ago
A dilation has center (0,0). Find the image of the point B ( 5/3, -7/2) for the scale factor 1/3​
EastWind [94]
<h3>Answer:   (5/9,  -7/6)</h3>

=======================================================

Explanation:

Since the center of dilation is (0,0), we multiply each coordinate of point B by the scale factor 1/3.

The coordinates of point B are x = 5/3 and y = -7/2

So we have

(1/3)*x = (1/3)*(5/3) = (1*5)/(3*3) = 5/9 as the new x coordinate

and

(1/3)*y = (1/3)*(-7/2) = (1*(-7))/(3*2) = -7/6 as the new y coordinate

The point (5/3, -7/2) moves to (5/9,  -7/6)

6 0
3 years ago
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